Temperatures in Monterey are not expected to rise above 75 degrees, with breezes off the ocean keeping things cooler. Thursday's high in Monterey was 68 degrees. Though the Monterey coast will be spared the extreme heat, National Weather Service forecaster Diana Henderson said, "People should be aware that it's going to get really hot. Folks outside should stay well hydrated and avoid being out during the hotter periods of the day like the mid-afternoon."

Those traveling to the San Joaquin Valley this weekend should pack a sun hat and light clothing because temperatures could soar up to 112 degrees through Wednesday. The area is expected to experience atypical high humidity, said a National Weather Service excessive heat statement.

One of the best ways to beat the heat is to stay indoors and drink plenty of water, said public information officer Karen Smith of the Monterey County Health Department.

For those who still want to enjoy the sunshine, Smith advises to "stay hydrated, wear a wide-brimmed hat, rest in the shade and don't forget the sunscreen."

Beth Brookhouser, director of community outreach for the SPCA of Monterey County, advises pet owners to keep a sharp eye on their animals over the weekend.

"Monterey isn't used to this kind of weather, so that means our pets aren't used to it either," Brookhouser said.

Simple precautions such as keeping pets inside, walking in the early morning and a steady supply of water can greatly reduce the risk of heat exhaustion. Heavy panting, convulsion, lethargic behavior and vomiting are signs that your pet is experiencing heat exhaustion, said Brookhouser.

She reminds everyone that it is illegal to leave a child or animal unattended in a motor vehicle.

"Even if the car is in the shade with windows rolled down, the inside of the car can reach up to 120 degrees which can cause brain damage or death," Brookhouser said.